Yesterday (August 6, 2010) I received the loaner USB Cable (1.8 meters) from NuForce. I was very impressed with the looks of the cable and the overall fit and finish is as good or better as I have seen. I proceeded to install it from the iMac to the Isabellina HPA and started listening using Grado RS-1 and both an AKG K1000 and Senn HD580 in balance configuration. The last two were driven via a Signature 30.2 power amp with the Isabellina HPA acting as the source and pre-amp. I am one of those who believes in burn-in so I will log at least 15-20 hours and then compare with my stock (read cheap) current USB cable. For now I can say the sound is very smooth and open, of course these straight out of the box so more to come.
Edit 1: I should mention the cable is not as flexible as my cheap USB cable, which I understand this is due to the additional shielding and the use of techflex as the outmost cover.
Edited by mrarroyo - 8/7/10 at 6:48am